Question 1

Is C4A a billable ICD-10 code?

Accepted Answer

No, C4A is not a billable code. It is a category code that requires additional specificity. You must select a more specific code from the subcategories for billing purposes.

Question 2

What does ICD-10 code C4A mean?

Accepted Answer

ICD-10-CM code C4A represents Merkel cell carcinoma. This code is part of the International Classification of Diseases, 10th Revision, Clinical Modification used for medical coding and billing in the United States.

Question 3

When was ICD-10 code C4A introduced?

Accepted Answer

Code C4A has been part of ICD-10-CM since 2016, when the coding system was mandated for use in the United States. This code was included in the original US implementation.

Question 4

What is the parent category for ICD-10 code C4A?

Accepted Answer

The parent category for C4A is section:C43-C44 (Melanoma and other malignant neoplasms of skin (C43-C44)). This hierarchical classification helps organize related diagnoses for more accurate coding.

C4A2026

Notes8Additional information

Is C4A a billable ICD-10 code?

What does ICD-10 code C4A mean?

When was ICD-10 code C4A introduced?

What is the parent category for ICD-10 code C4A?